Hi Mr Underhill, as you and others have said I could darken the doors of Sevenoaks once we are post CV. I may on the other hand risk a purchase on line. The 210 looks like an interesting proposition for my foray into Roon and come in much cheaper than my early thoughts on buying a used dcs network bridge. I have a RPi but don't have the stamina to set one up for Roon or to use it on a day to day basis as a Roon end point.
At this point my biggest issue becomes what to use as a DAC and a preamp. I have tried several pre amps into my NAP 300 and none seem to drive it quite like my SuperUniti, the problem with the SU ultimately is its lack of refinement, hence my wish to find a neat replacement.